3D Printing Pen

3D pen works by extruding heated plastic that cools almost instantly into a solid, stable structure, allowing for the free-hand creation of three-dimensional objects. It utilizes plastic thread made of either acrylonitrile butadiene styrene ("ABS"), polylactic acid ("PLA"), or “FLEXY”, thermal polyurethane (“TPU”) that is melted and then cooled through a patented process while moving through the pen, which can then be used to make 3D objects by hand